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EP 2 268 977 A1

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(43) Date of publication: 05.01.2011 Bulletin 2011/01 (21) Application number: 09729143.9 (22) Date of filing: 30.03.2009

(51) International Patent Classification (IPC):  F24F 11/02(2006.01) F24F 1/02(2011.01) F24F 13/30(2006.01) F28F 27/02(2006.01) F24F 1/01(2011.01) F24F 11/00(2006.01) F28F 1/00(2006.01) F28F 9/26(2006.01) (86) International application number: PCT/SE2009/050329 (87) International publication number: WO 2009/123552 (08.10.2009 Gazette 2009/41)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA RS (30) Priority: 31.03.2008 SE 0800723 (71) Applicant: Lindab AB 269 82 Bastad (SE)	(72) Inventor: HULTMARK, Göran S-426 76 Västra Frölunda (SE) (74) Representative: Aurell, Henrik  Albihns AB Studentgatan 4 Box 4289 203 14 Malmö 203 14 Malmö (SE)